title: Approaches to vaccines against protozoan parasites of cattle.
mesh_terms: D000367:Age Factors; D000712:Anaplasmosis / Q000276:immunology / Q000517:prevention & control*; D000818:Animals; D016782:Apicomplexa; D001404:Babesiosis / Q000276:immunology / Q000517:prevention & control*; D002417:Cattle; D002418:Cattle Diseases / Q000517:prevention & control*; D002460:Cell Line; D003602:Cytotoxicity, Immunologic; D003906:Developing Countries; D007111:Immunity, Cellular; D013801:Theileriasis / Q000276:immunology / Q000469:parasitology / Q000517:prevention & control; D014611:Vaccination